U7L11 Lesson Summary Quiz

What shape is formed by the graph of any quadratic function?

• Circle

• Parabola

• Triangle

• Rectangle

What does it mean when a parabola "opens upward"?

• The vertex is at the highest point

• The vertex is at the lowest point

• The graph is linear

• The graph is a circle

What is the standard form of a quadratic equation?

• ax^2 + bx + c

• ax + b

• a(x-h)^2 + k

• mx + b

What effect does adding a constant term to a quadratic equation have on its graph?

• Rotates the graph

• Shifts the graph horizontally

• Shifts the graph vertically

• Changes the shape of the graph

What is the effect of subtracting 4 from x^2 in the quadratic equation y = x^2?

• Moves the graph 4 units up

• Moves the graph 4 units down

• Moves the graph 4 units left

• Moves the graph 4 units right

What happens to the graph of the function y = x^2 when 5 is added to x^2?

• The graph moves down by 5 units.

• The graph moves up by 5 units.

• The graph becomes narrower.

• The graph becomes wider.

What is the coefficient of the squared term in the quadratic function y = x^2?

• 0

• 1

• -1

• 2

What effect does multiplying x^2 by a number less than 1 but greater than 0 have on the graph of y = x^2?

• The graph opens downward.

• The graph becomes steeper.

• The graph becomes wider.

• The graph moves up.

If y = 2x^2 and y = -2x^2 are graphed, how do their graphs relate to each other?

• They are the same.

• They intersect at the y-axis.

• They are reflections across the y-axis.

• They are reflections across the x-axis.

Which answer choice describes  y = -3x² +7x - 2 accurately?

• opens up with a maximum
• opens up with a minimum
• opens down with a maximum
• opens down with a minimum